Which formula represents lead(II) chromate?
(1) PbCrO4 (3) Pb2CrO4
(2) Pb(CrO4)2 (4) Pb2(CrO4)3
(1) PbCrO4 (3) Pb2CrO4
(2) Pb(CrO4)2 (4) Pb2(CrO4)3